Wrench.



A. BARRETT.

WRENCH.

APPLICATION FILED MAYM, 1917.

Patented N 0v. 26, 1918.

ARTHUR BARRETT, OF BELLEVUE, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent.

Patented Nov. 26, 1918.

0 Application filed May 14, 1917. Serial No. 168,608.

T 0 all whom it may concern Be it it known that I, ARTHUR BARRETT, a citizen of the United States, residing at Bellevue, in the county of Allegheny, State of Pennsylvania, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

My invention relates to tools for handling drill-bits or other tools used in drilling or operating Artesian .wells and for like purposes, the tools being also applicable generally to the handling of any heavy parts to be screwed together when in a vertical position,

whether in connection with Artesian wells or in other mechanical operations. It is an improvement on Letters Patent No. 561,305, dated June 2nd, 1896, issued to Josiah Barrett and is intended to meet a difficulty in the use of tools for handlingheavy parts required to be screwed together, owing to the difficulty in turning the revolving member because of the open gap.

My invention consists, generally stated, in providing a swivel ring with a removable segment WhlCll when applied closes the gap, forming a complete circle which allows the revolving parts to turn freely on a continuous sliding surface. The said removable part when applied also serves the purpose of preventing the drilling tool from accidentally falling out through the opening while said tool is being handled. I

In the accompanying drawings, Figure 1 is a plan view of the tool, Fig. 2 is the section of same, and Fig. 3 is a view of the swivel ring with the removable segment opened.

In the drawings the frame or lever of the wrench is shown at 1, and this may be supported, if desired, by any suitable crane or derrick by means of a chain or block, with a hook or ring passing through the eye 2. This lever has its forward end forked, being provided with the arms 3, which are provided at their outer ends with the eyes or bearings 4'. The swivel-ring is shown at 5, and this is mounted in the forked arms by means of trunnion-bolts 6, passing through the eyes 4.- and into said ring 5.

This ring is open on one side and is provided with arms or lugs 10 to which is attached a removable segment 8. Mounted on ring 5 Is the rotary wrench portion or plate 7, which likewise is open on one side, as shown, to admit of its engagement with and disengagement from the articles to be handled. This plate 7 is bolted with suitable bolts to the carrier ring 11, which allows the use of separate and interchangeable lates for different'size articles to be hand ed.

In the use of prior devices of this character the swivel ring 5 has not been provided with the segment 8 to close the gap. This gap being open would prevent theplate 7 and carrier ring 11 from revolving freely within said swivel ring, and would also permit the articles being handled to accidentally fall out when the opening in plate 7 and the opening in swivel ring 5 coincide. By m invention I provide the swivel ring 5 wit a suitable segment 8 which closes the gap while the tool is being used. This segment may be fastened as shown in Fig. 1, by suitable bolts 9 or could be arranged to be fastened with a hinged or pivoted connection at the one end and a bolt at the other end as in Fig. 3, enabling the segment 8 to be swung outward and then be quickly closed after the article to be handled has been placed in position in the wrench portion. Various other methods of attaching se cut 8 may be substituted by those skilled in the art.

By my improvement the tool-holder or wrench proper of the device is capable of being turned with case, even when supporting the heaviest article, and the said articles are prevented from accidentally falling out of the wrench portion through the gap.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a wrench, the combination of a forked frame, a, ring pivotall mounted on the forks thereof; said ring aving a gap at one side thereof, a tool holder journaled in said ring to rotate therein, and a segment weeeee arranged to close the gap in'said ring, said segment being detechably secured. to said 2% In a wrench, the combination of a forked frame, a ring pivotelly mounted on the forks thereof; said ring having a gap at one side thereof, a tool holder journaleci in said ring to rotate therein, and esegment arranged to close the gap 1n seld nng, sand segment having one of its ends pivoted to 10 the ring and. its other end suitably secured thereto.

In testimony whereof I hereunto afiix my signature in. the presence of two Witnesses. ARTHUR BARRETT. Witnesses;

W. H. MENDENHALL, E. A. Hess, 

